Reflector



Mar. 20, 1923. 1,448,870.

E. J. SAMPLES 'ET AL.

REFLEGTOR. FILED JUNE 21. |922. v 2 SHEETS-SHEET i.

INVENTOR ATTORNEY.

` Mar. 20, 1923.

Z SHEETS--SHEET 2.

'wcE-;

INVENTOR Patented llt/lain. Z, i923.,

EVEBETT J'. SAJlPLES AND LUU'JS C. MCDONA'LD, Gli' KANSAS CITY, lt/ISSOURI.

REFLECTOR.

Application filed June `2l, 1922. Serial No. 569,950.

To all w 7mm t may concern Be it known that we, lvnnnrr J. Snirrnns and Louis C. MoDoNALD, citizens oi' the United States, residingl at Kansas City7 in the county oi Jackson and State oi' Missouri, have invented new and usetul lmprovements in lieiectors, ot which the following isa speciiication.

@ne object oi" our Vsaid invention is the provision in a reflector of a shell adapted 'to be expeditiously and easily connected to and disconnected from a neck, this in order that the shell may be removed when dirty and replaced with a fresh shell, thereby obviatinp; the danger of a workman cleaning the shell while it is in position for use.

Another object oi' the invention is the provision ii peculiar and advantageous means for safely connecting the shell to the neck.

Another object is the provision ot means for locking the lamp in the receptacle, land it'or guarding the said locking means when the shell is secured to the neck.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and definitely claimed.

in the accompanying` drawings, 'forming part o1C this specification Figure l is a side elevation showing` our improvement complete as it appears when ready for use.

`Figure 2 is a side elevation of the redector shell per se. t

Figure 3 is a longitudinal central section taken through the reflector complete.

Figure it is a transverse section taken through the neck and the securing means in the plane indicated by the line 41i of Figure 3.

Figure 5 is a detail view illustrative of the means 'for locking the lamp in the receptacle. v

Figure G is a detail elevation oity the key that we prefer to employ in connection with the said lock, the said key being designed to be carried by a party in charge of the reiiector and the lamp therein.

Similar numerals of reference designate corresponding,` parts in all of the views ot the drawingso lThe reflector shell is designated by l, and is provided with a tubular extension 2 eirtending from the reduced end of the shell and provided in its rear end with bayonet slots 3 and near said end and between two of the slots 3 with an aperture al. i

The neck of the reflector is designated by 5 and is of general tubular iorm with a wire conduit 6 at its rear end. rilhe said neck 5 is provided with spaced apertures 7 and is also provided with a comparatively large aperture 8, the apertures 7 being designed for the passage of screws 9, and the aperture S being` adapted for the introduction ci: the key 10, Figure 67 the said key i0 coinprising a handle il of dielectric materiak and a metallic shank l2 socketed and secured in one end of said handle and projecting; therefrom and having in its forward end a socket 13 of angular form in cross-section.

The screws 9 are headed and kerted at their outer ends and are provided with smooth shank portions 14e and with reduced and threaded shank portions 15.

l/Vithin the neck 5 and opposite the apertures 7 and 8 is arranged a lamp receptacle 16 of dielectric material, and in the said receptacle 16 is a threaded metallic bushing; 17 for the engagement oi the threaded stem on an incandescent electric lamp; it being; understood iny this connection that the receptacle is equipped with the usual` or any other appropriate terminals for cooperation with the iilament terminals of the lamp referred to. The receptacle l5 is provided with apertures 18 for the reception of the portions le of the screws 9, and embedded and secured in the receptacle 16 are nuts 19 to receive the threaded portions l5 of the screws 9. Secured in the receptacle 1S is a `threaded bushing 2O threaded through said bushing and provided with an inner pointed portion which extends through the bushing;

17 so as to engage the stem of the lamp is a locking pin 21 the outer end of which is ol angular form in'cross-section for the engagement of the shank of the key l0 before referred to. Maniestly when the apert re i of the shell. extension 2 is registered with the aperture 8 of the neck pthe key i() may be engaged with the locking;l pin 2l for the fastening or the unitastening et a lamp stein in the bushing l?. it will also be manifest that when the tuhular extension 2 on the shell l is turned about its aXis within the neck 5 in order to tasten the extension 2 in the neck, the aperture e will be carried out of coincidence with the aperture 8 so as to guard the pin 2l and prevent tampering therewith. It will also be appreciated in this connection that when the extension 2 is turned about its axis to engage t-he bayonet slots 3 with the screws 9, and the said screws are turned inwardly and tightened, the tubular extension 2 will be strongly and safely secured in the neck 5 and in such manner that there is practically no liability ot the shell being casually disconnected and permitted to tall. When deemed expedient7 however, in order to make assurance doubly sure a stay wire 22 may be interposed lbetween and connected to the forward portion of the shell l and a portion of the building equipped with my improvement.

In virtue ot the capacity oi' the shell l of our novel reflector to be readily detached from the neck 5 it will be understood that when it is not feasible in the winter time to wash the shell l while it is in position for use, the said shell may be expeditiously and easily replaced with a fresh and clean shell, the removal shell being cleaned in a shop and being used inl lieu of the said Ptresh shell after the latter has `become dirty to such an extent as to materially diminish its reflecting capacity.

In addition to the function herein before ascribed to the screws, it will be noted that the said screws serve to strongly hold the lamp receptacle in the neck.

it will also be appreciated that as a whole our improvement is simple, strong and inrrqpensive in construction, and is well adapt-v ed to withstand exposure to the Weather.

l/Ve haveentered into a detailed descriptiono't the construction and relative arrangement of the parts embraced in the present and preferred embodiment oit our invention in order to impart a full, clear and exact 4understanding ot the said embodiment. lNe do not desire7 however, to be understood as contining ourselves to the said specific construction and .relative arrangement of parts inasmuch ras 'in the future practice of the invention various changes and modifications may be made such as tall within the scope ot' our invention defined in our appended claims.

Having-described our invention. ywhat we claim and desire to. secure by Letters-Patent, is

l. The combination et a reflector shell having a tubular extension and also having bayonet slots in said tubular extension, a tubular neck having apertures. a lamp receptacle of dielectric material arranged in said neck, nuts secured in the said receptacle and screws extending through the apertures olf' the neck and having sn'iooth shank portions and also having reduced and threaded por- 'rions engaging the nuts in the lamp receptacle to retain thelatter in position; the

said lamp receptacle being spaced from the wall of the neck7 the tubular eXtension or' the shell being interposed between the receptacle and the wall ot' the neck for turning of the shell to engage the bayonet slots with the smooth .portions ot `the screw Shanks, and the screws being adapted to be tightened to secure the tubular extension of the shell between the neck wall and the periphery of the lamp receptacle.

2. The combination ot a rellector Shell having a tubular extension and also having bayonet slots in said tubular extension7 a tubular neck Ahaving apertures, a lamp receptacle of dielectric material arranged in said neck, nuts secured in the said receptacle. and screws extending through the apertures ot the neck and having smooth shank por tions and also having reduced and threaded port-ions engaging the nuts in the lamp receptacle to retain the latter in position; the said lamp receptacle being spaced 'from the wall of the neck7 the tubular extension ot the shell being interposed between the receptacle and the wall ol the neck lor turning of the shell to engage the bayonet slots with the smooth portions of the screw shanks, the screws being adapted to be tightened to cure the shell extension between Athe neck wall and the periphery of the receptacle, and the receptacle .being equipped with a threaded vbushing and a locking pin extending through said Abushing and arranged in its threaded bearing in the receptacle7 and the tubular shell extension and the neck having apertures which are registered with each other and with the locking pin when the shell extension is unlocked from the necl. and is guarded by an imperforated portion of the neck when the tubular extension ot the shell is turned to lock it in the neck.

3. The combination of a reflector shell having a reduced tubular extension7 a stationary neck to receive said extension; a lamp receptacle in the extension, and means detachably connecting the tubular extension inthe neck and to the neck; the lamp receptacle being secured inthe neck by the means through which the tubular extension is detachably connected to the neck and the said lamp receptacle being pro-vided with a threaded bushing and with a locking pin bearing in the receptacle and having a point penetrating said bushing, and the shell tension and the neck having apertures which are in registration when the shell is un locked and are not in registration when the shell is locked. the neck aperture being coincident with the locking pin.

In testimony whereof we aliix our signatures.

EVERETT J. SAMPLES. LOUIS C. MQDONALD. 

